I initially didn’t like this product because the pads filtered the nitrates out of my water faster than phosphates, thus rendering my fertilizer essentially useless. It caused an algae bloom when this happened. However, when I switched to filtering my source water at the recommendation of the folks at aquarium co-op, this worked perfectly. After two weeks of filtering my source tapwater, my blue algae problem is nearly completely gone.

These pads, along with vacuuming and water changes, are helping me to control phosphates. I cut and drop into into HOB filters. They are fun and can stand upright. Thanks Co-Op for another quality product.
You can catch my Black Algae videos @BenOchart on YouTube.

I’ve been using this media pad in my filter for about 3 weeks now and it’s worked perfectly for me so far I hope it will work as good in the future

I baught this for my H.O.B filters. And it is working great. It comes in a pretty big sheet. So I just cut it to to fit my filters. I have a significant amount of phosphates in our city water. And it really works good to filter it out. And it is a lot cheaper than other products I have used in the past and works better.

Have had for 2 weeks and seems to have reduced phosphate and silica.

I wrapped this around a small fine-mesh sponge filter with a powerhead attached. It was easy to cut the strip to the right height and the length was perfect to wrap around the filter. I suspect this is not a coincidence and another excellent design choice to make things easy for us hobbyists :-) My phosphate levels in the tank had been running >5ppm and are down <0.5 ppm within a week. I'm using this as part of my campaign to reduce hair algae growth and support my plants better. I still use the Easy Green fertilizer.

Works, easy to cut and use in most filters. Works wrapped around a sponge filter to, mostly.

Phosphate is hard to come by for aquarium use. Finding it and in a form that is easy to use was areal eye opener. Shipping was fast and secure.

I actually got this as part of my Fluval Aquaclear 110 hot rod project. Prefilter sponge on the new 90 degree intake, coarse media, carbon media, phosphate, ammonia, fine polishing, and bio rings to top it off. I’m not exactly checking parameters like I maybe should, but the water is crystal clear and the pads were all easy to cut to size and I have plenty to replace with.

Does a nice job slowly lowering phosphate. Used a 2" x 5" strip on top of the media im my Tidal 55. Lowered phosphate frpm 2 to 1.5 in 2 days in 40 gallon breeder tank.

Wouldn’t want to go without this product. Our well water is high phosphate, but aside from its primary use, cut-down pieces of this in a canister filter are a great media.

Phosphate Media Pad

Gpod product. My lights are on for about 5 to 8 hours daily and i had algae issues. So decided to give the phosphorus product a try and i must say its been a month or so and the amount of algae has considerably decreased in my tank.

Would recommend

Black beard algae is a bummer, adding this pad to my canister filter gave me the advantage I needed.

I have two ten gallon aquariums with Tetras, plants, rock, gravel and spiked phosphate levels. The media pad works great to reduce the levels while being an added filtration. Definite good buy.

Works great I recommend it

Recently, I purchased from the Aquarium Co-op the course sponge pad, fine pad, carbon infused pad, and phosphate media pad. To date, I’ve not needed any of them, but I can explain my reasoning.

For tanks > 29-gallons I use hang-on-back filters. These allow easy addition or subtraction of various filter inserts and bio-rings. Tanks < 29-gallons have sponge filters . Besides these I keep Shark Pro internal filter/pumps and box filters, which when needed can accommodate the pads noted above. This arrangement permits the shark pro to be used for additional flow and temporary filtration using any of the pads, or a box filter with appropriate pad can be added to any tank, as needed.

The Aquarium Co-op pads are important additions to my fish room to be used for normal replacements, or extra water quality maintenance and emergencies.

In my 20 gal planted shrimp.& Nano fish tank adding this reduced the levels from 5 to 2 in 3-4 days.

I have .25 -.5 phosphates in city well water. Plus aquarium plants and food decaying in a well stocked tank. Phosphates were not all being used up by plants. Bought this pad and cut to shape needed. Worked perfect getting phosphates in check, and took small particles out of water.

A great product. Very easy to use ,cut and adapt it for use in almost every kind of filter.

I use this in my canister and HOBs. It cut to fit into 4 large size Aqueon filters and 4 small pads for my 407 can. Test could tell within 4 hours of it dropping my levels nocelt

These pads make it easy to reduce phosphate when it's a bit high. Just cut it to desired shape and plop it in the filter. Can't make it easier than that.

Cut down my phosphate, noticeable in 2 days on 120 gal tank.

These seem to be ok but I’m still in progress of using them. My phosphate was sky high at the max of 10+ per the API yesterday. I doubled the pads as directed by co-op for about two - three days and it’s gone down to around 5ppm. I’m stilling not clear on how long to leave them in or change them and don’t get a direct answer from co-op either. I think if you’re in a bind these can work but I wouldn’t say these are the “best” at reducing a spike.

this product may work for some but within HOURS it had dropped my nitrate levels from 40+ to 0, with no effect on phos levels, causing an huge blue green algae bloom. exactly the opposite of what I wanted.

You pay less than buying the pre cut ones and you get way more

I had high phosphate levels for a while and just deep vacuuming the gravel wasn’t doing the trick for me-I put a few layers of this phosphate pad in a HOB filter and it really helped to quickly lower my phosphate level.

This will last for a while with my nano tank, another great product.

I love that I cut this to size for my filter.